Tapping-jacket.



Patented lu ne 3, I902.

No; 70l,670.

M.. BARRETT. TAPPING JACKET.

(Application filed Jan. 23, 1909.)

(No Model.)

. WIPTNESSES:

ATTORNEYS ms cams ruins ca. PuoTmLn'Hm WA5HINGTON, D. c.

UNITED ST TES PAT NT OFFICE.

MILES BARRETT, or GRAND FORKS, cANADA, AsSIeNoR or oNE' IIALF To FRANCIS I-I. HUTTON, or GRAND FORKS, BRITISH COLUMBIA, CANADA.

TAPPlNG-JACKET.

SPECIFICATION forming part of Letters Patent No. 701, dated June 1902- Application filed January 23, 1902. Serial No. 90,880. (No model.)

To all whom it may concern:

Be it known that 1, MILES BARRETT, a subject of the King ofGreat Britain, and a resident of Grand Forks', in the Province of British Columbia 'and'Dominion of Canada,-have invented a new-and useful Improvement in Tapping-Jackets, of which the following is a full, clear, and exact description.

My invention relates to tapping-jackets that is, to jackets'used in connection with a tap-hole in m etallurgical-furnacesthe object being to circulate cold water or some other cooling fluid around the tap-hole for the purpose of preventing the same from becoming unduly heated. I, I

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the-claims. I

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is an elevation showing my device as applied to a furnace. Fig. 2 is a sec tional view upon the line 2 2 of Fig.1." Fig. 3 is a detail view showing the upper half of the jacket partly broken away and.-Fig. 4 is a somewhat similar detail View showing the lower half of the jacket also partly broken away.

Upon a track 1 are mounted wheels 2, supporting a frame 3, provided with a spout tin the usual manner; The upper and lower halves 5 and 6- of the tapping-jacketare jhollow and theinner and outer portions are secured together by bolts 7. These upper and lower'halves are provided, respectively, with semicylindrical apertures 8 and 9, which when placed in juxtaposition form the substantially cylindrical tap-hole 10.- The upper and lower halves 5 and 6 are supplied with running water by means ofia pipe 14 and branch pipes'15 and 16, which enter apertures 19 and 23 in the parts 5 and 6 of the jacket, as shown at'the right hand in Fig. 1. A pipe 11 is provided with branch pipes 12 and 13, which enter apertures 20 and 21 in the upper and lower halves of the jacket, as shown at the left in Fig. 1. These pipes 11, 12, and 13 are outlet-pipes and are used for conducting away the water suppli edby the inlet-pipes 14, 15, and 16. An'outlet-pipe17 enters an aperture 22 in the-part 6 of the jacket at a point about opposite the aperture 121.. Bythis arrangement the lower half of the jacket is provided with two outlet-pipes, the purpose of which is to'prevent the accuflnulation of air upon either side of the taphole 10. Were it not for this arrangement it might happen that water flowing into the lower half of the jacket through the pipes 15 and 16'and carrying more or' less air might cause'an accumulation of air In the upper part of the lower half of the jacket upon one side or the other of the tap-hole 10.

Each half of the jacket is made of boilerplate or copperplate' and provided with a rib 18, through which the bolts 7 pass. It will be observed,therefore, that the tap-hole is without seams, rivets, bolts, or anything of the kind, being made of whole iron, as indicated in Fig. 2. In other words, each of the halves of the jacket is practically integral so far as the tap-hole is concerned. The purpose of this arrangement is to prevent the formation of fissures and enable each half of the jacket to avoid leakage even when subjected to powerful strains. If desired, each of the halves may be cast integrally.

The upper and lower halves of the jacket are to some extent independent and can be separately removed if one of them should be injured or. worn out and another one substituted without detrimentto the other half. This is a convenient and economic arrange- "ment, for the reason that the best of jackets may notlast very long. A

The jacket as a whole may be filled with either hot or cold water or may be operated with other fluids besides water. The adaptability of this jacket is yery great, and it materially increases the life of the adjacent parts. I I

The upper and lower halves of the jacket constitute practically a hollow door filled with running water. v i

In this device it will be observed that every precaution is taken to prevent the direct contact of water and the hot metal used in casting, or with the hot metal from a lead or copper furnace. By having each half of the jacket made thus strong the liability of the same to crack is reduced to a minimum even when the full head of water is turned on with the jacket hot. Even in case of a leaking jacket the water is not likely to come in direct contact with the hot metal.

The halves 5 and 6 of the jacket are neatly fitted into the frame 3 and secured thereto by means of cleats 24 and 25. To remove either or both of the halves, all that is necessary is to disconnect the pipes and turn the cleats, as indicated by dotted lines in theupper portion of Fig. 1.

By means of the hand-valves 26 27 the temperature of the jacket may be regulated to some extent by governing the inflow of liquid. With the valves adjusted to allow only a slight flow the jacket becomes hot, whereas bya free flow of the liquid the jacket is maintained comparatively cool.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A tapping-jacket, comprising a receptacle for holding hot metal; a pair of hollow members, means for detachably securing said members upon said member for holding hot metal, and a plurality of pipes for circulating a fluid through said members independently.

2. A tapping-jacket, comprising a pair of hollow members provided with independent compartments for holding a circulating liquid, the said members being provided with apertures of proper shape to form a tap-hole when fitted together in j uxtapositiomand supply and exit pipes connected with said hollow members.

3. A tapping-jacket, comprising a pair of hollow members mating each other and provided with semicylindrical apertures, said apertures being adapted to form a tap-hole of substantially cylindrical form when said members are fitted together, and means for supplying a circulating liquid to said members separately.

4. A tapping-jacket, comprising members provided with compartments for holding a circulating liquid, and having a tap-hole adjacent to said compartments and free from seams, and means for supplying a liquid to said compartments.

5. A tapping-jacket, comprising a pair of hollow members mated together and each havingasubstantially semicircular aperture, and means forsupplying a circulating fluid to said hollow members.

6. A tapping-jacket, comprising a plurality of hollow members adapted to be fitted together, and provided with separate compartments and also provided with apertures constituting fragmentary portions of a tap-hole, and means for supplying a circulating fluid to said hollow members.

7. A tapping-jacket, comprising a pair of members mating each other and provided with separate water-tight compartments and with apertures for forming a tap-hole, and means for rendering said members interchangeable, so that one maybe removed without affecting the other.

8. A tapping-jacket, comprising a pair of hollow members provided with separate compartments for holdinga circulating liquid and with fluid-tight apertures free from seams, said apertures being adapted to form a taphole when placed in juxtaposition, and supply and exit pipes connected with said hollow members. a

9. A tapping-jacket, comprising a pair of hollow members provided with independent compartments for holding a circulating liquid and also provided with apertures constituting fragmentary portions of a tap-hole, means for supplying a circulating liquid to said hollow members, and a plurality of outlets connected with said hollow members and located upon opposite sides of said tap-hole.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MILES BARRETT.

Witnesses:

MORLEY C. DAVIDSON, MORTIMER J. SULLIVAN. 

